| 摘要 |
<p>The invention relates to devices for input data to the computer, especially, to the register switching devices. A device comprises switches (1, 2, 3, 4), triggers (5, 6, 7,8), logical schemes "Ir" (9, 10, 11, 12). A number of switches, triggers and logical schemes depend on a number of registers. A switch comprises photo emitters (13, 14, 15 or 16) and photo receivers (17, 18, 19 or 20). Cathodes of all photo emitters and photo receivers are connected to "+" pole of a feeding source (21), anodes of photo emitters (13, 14, 15, 16) by corresponding resistance (22, 23, 24, 25) are connected to a joint bus. Anode of photo receivers (17, 18, 19, 20) each by two sequentially connected resistances (26, 27), (28, 29), (30, 31) and (32, 33) are connected to a joint bus. A switch (1) of a first register has a circuit, which comprises n-p-n transistor (34), a base of it by a resistance (37) is connected to a joint bus, and by second resistance (35) and with mentioned resistance sequentially connected electroly</p> |
